3 years ago

In triangle DEF , DF = 16 and angle F = 45. Find the length of a leg. Leave your answer is radical form.

Mathematics

1 answer:

Inga [223]3 years ago

7 0

B) would be my answer too

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After 3 minutes, a submarine had descended to −320 feet. After 8 minutes, the submarine had descended to −420 feet. Assuming a l

LiRa [457]

Answer:

$d(t) = -20t - 260$

Step-by-step explanation:

The depth function is:

$d(t) = mt + b$

After 3 minutes, a submarine had descended to −320 feet.

This means that $d(3) = -320$ . So

$d(t) = mt + b$

$-320 = 3m + b$

After 8 minutes, the submarine had descended to −420 feet.

This means that $d(8) = -420$ . So

$d(t) = mt + b$

$-420 = 8m + b$

From the first equation:

$b = -320 - 3m$

$-420 = 8m + b$

$-420 = 8m - 320 - 3m$

$5m = -100$

$m = \frac{-100}{5}$

$m = -20$

And

$b = -320 - 3*(-20) = -260$

$d(t) = -20t - 260$

7 0

3 years ago

12 in

olasank [31]

Answer:

can you write that a lil better

8 0

2 years ago

The lines shown below are parallel. If the green line has a slope of -1/2, what is the slope of the red line?

lbvjy [14]

<h3>Answer: B) -1/2</h3>

Explanation: Parallel lines have the same slopes, but different y intercepts.

4 0

3 years ago

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A reactangular court measures 600 cm wide and 700 cm long find the perimeter?

Tcecarenko [31]

Answer:

2(l+b)

2(600cm+700cm)

2(1300cm)

2600cm

Therefore, the perimeter of the rectangular court is 2600cm.

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2 years ago

What is 3 2/5 as a decimal?

elena-14-01-66 [18.8K]

Answer:

3.4

Step-by-step explanation:

2/5 as a decimal is 0.4, and we can add 3 to it, getting 3.4

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2 years ago

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